VIRBAC Knockout E.S. Area Treatment Spray, 16-oz can - Chewy.com

Virbac Knockout E.S. Area Treatment Spray, 16-oz can

By Virbac
Rated 4.3182 out of 5 stars

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$28.99Chewy Price
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About This Item

  • Rapidly kills active flea and tick infestations with active ingredients pyrethrins, permethrin, and pyriproxyfen (an Insect Growth Regulator).
  • Prevents flea infestations from developing for up to 7 months by stopping immature fleas from developing into the adult biting stage.
  • Reaches fleas hidden in carpets, rugs, drapes, upholstery, pet bedding, and floor cracks for greater effectiveness.
  • Leaves no unpleasant odor or sticky mess, and does not stain furnishing when used as directed.
  • Covers and treats 2,100 square feet.
Play Video: Learn More About Virbac From Our Team of Experts
Learn More About Virbac From Our Team of Experts

Important Information

Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.



About Virbac Dog Pest Protection

Pest Protection

External parasites can be a nuisance to your dog. Use Virbac's topical product for convenient, quick-acting, long-lasting, effective control of fleas and ticks. Kills adult fleas for up to one month and prevents flea eggs from hatching or developing into larvae or adult stages for up to 3 months. Do not use on dogs less than 8 weeks of age. Do not use on cats.

Team Up Against Parasites

Every dog, everywhere deserves affordable year-round parasite protection. IVERHART MAX® (ivermectin/pyrantel pamoate/praziquantel) Soft Chew offers broad coverage with protection against heartworms, roundworms, hookworms and tapeworms. A proven formula with active ingredients recommend by veterinarians for years, IVERHART MAX Soft Chew is bacon-flavored; a soft chew that your dog will love. Important Safety Information for IVERHART MAX ® (ivermectin/pyrantel pamoate/praziquantel) Soft Chew: All dogs should be tested for existing heartworm infection before starting treatment with IVERHART MAX Soft Chew. Use with caution in sick, debilitated, or underweight dogs weighing less than 10 lbs. Gastrointestinal and neurological signs, such as convulsions, have been reported following the use of ivermectin products. For complete product information, refer to the product insert.

Protect Your Home

Not only are there solutions to help control parasites on your dog, but Virbac also has a solution for your home. KNOCKOUT® Area Treatment kills adult fleas and ticks and controls pre-adult fleas (Larvae) for 120 days. For indoor use only. For use in homes and residential use sites. Not for use in commercial or industrial buildings.

About Virbac

Founded in 1968 by a French veterinarian, Virbac is an independent pharmaceutical laboratory dedicated to animal health. For fifty years, the company has built a personalized relationship with veterinarians. Through this partnership, Virbac contributes, day after day, to shape the future of animal health.
Shop Virbac

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Breed SizeSmall Breeds, Medium Breeds, Large Breeds
Top IngredientsDeionized Water, Essential Oils Of Cedarwood, Peppermint...Active Ingredients: 0.180% Pyrethrins, 0.300% Piperonyl Butoxide, 0.479% mgk 264 Insecticide Synergist....
Health FeatureAnti-Parasitic, Skin & Coat Health, Vitamins & Minerals, Pest ControlPest Control

Questions & Answers

54 Customer Questions


Can I cancel my next shipment? I don’t need it anymore.

Is it safe to spray on a bed?
Answer by ChewyNov 08, 2017
This product reaches fleas hidden in carpets, rugs, drapes, upholstery, pet bedding, and floor cracks for greater effectiveness. It will leave no mess, unpleasant odors or sticky residue when used as directed and will not stain furnishings.

Would it be ok to simply keep the cats out of the basement if the basement was all I was treating? Or would it be necessary to remove the cats from the house altogether?
Answer by ChewyJun 16, 2017
It would be perfectly okay to keep your cats out of the basement while treating it. The instructions specify to only keep people/pets out of the area being treated. The rest of the house would be perfectly okay for your kitties.

How do I choose which Knockout to use for fleas in the house? regular or E.S.
Answer by ChewyJun 27, 2018
Virbac Knockout prevents infestations up to 4 months.The Virbac Knockout E.S. provides rapid relief from an active flea and tick infestations and prevents infestations up to 7 months.


ReviewsWrite a Review

4.3
Rated 4.3182 out of 5 stars
220 Reviews
89%
Would recommend to a friend
1
9.0909
9%
2
3.6364
4%
3
6.8182
7%
4
7.2727
7%
5
73.1818
73%

220 Customer Reviews



Rated 5 out of 5 stars
By DeniMo on Aug 19, 2022

Did the trick! Buy an extra can

This was recommended to me by our vet’s office, and Chewy’s prices are much cheaper. I’m glad I read the reviews and got an extra can. I had no problems using it, when we returned there was no odor, and most importantly, the fleas are gone! I also switched to Credelio for preventative.


Rated 2 out of 5 stars
By Bear on Aug 7, 2022

Killing the flee problem

It did a OK job. Didn't kill all of them. Waited for a few days. Went back to the blackflag flee killer. Took care of the rest of them. Staying with blackflag. Lot cheaper than the other one.


Rated 5 out of 5 stars
By Supermabel on Jun 1, 2022

Very good product

I have used this product for years and used to purchase it at my vet so happy to be able to get it at Chewy. I spray my couch every time I change the cover, about every 5th day, or if I see a flea my dog brought in.


Rated 5 out of 5 stars
By Kimmer on Apr 2, 2022

Flea Solution!

I had an exterminator here twice to no avail. I bought and used this product and the Flea Nightmare Ended. I highly recommend it. However, humans and dogs are alright to enter the environment once it's dryed, but cats to be on the safe side should wait at least 24 hours just to be safe after it's dried. Their systems can greatly be affected by the chemicals in it. Other than that, I'm Flea Free thanks to Chewy carrying this product. Thanks Chewy!


Rated 5 out of 5 stars
By Laterfle on Aug 7, 2022

Just awsome

This spray is just in insane! I'm so going to get more I definitely recommend it to everyone


Rated 5 out of 5 stars
By firefly6260 on Apr 19, 2022

Best Product out there

I have been using this home treatment spray for years. It is the best on the market. Kills flea larve in less than a day along with a treatment for your pet. It is worth the cost.


Rated 5 out of 5 stars
By Midwest on Mar 9, 2022

good stuff

this is amazing stuff. would use it even if I didn't have any pets. Have used it for many years without any issues whatsoever. Kills anything, including unwanted inspects, that happen to crawl on your carpets what have been sprayed with it.


Rated 1 out of 5 stars
By chels29 on Mar 29, 2022

unhappy with this product

Fleas got brought into my house somehow, just a minor flea problem and I thought this would do the trick after I got the fleas off the cat but the spray didn’t help what so ever


Rated 4 out of 5 stars
By Wooo on Jan 8, 2022

Actually works

I was using DE and it didn’t really work. Used borax, only slightly worked. After one spray of this in each room I’ve seen a BIG difference, not one flea on my sock. What sucks is that I have to wait a couple weeks to make sure there’s no fleas that haven't hatched. But will continue to regularly vacuum and will spray the other can in a week :) depending on that I will come back and give 5 stars lol. But love it so far and highly recommend.


Rated 5 out of 5 stars
By Becky123 on Jan 20, 2022

Killed the Fleas!

We had a pretty bad infestation at our house, and I only have the 1 indoor/outdoor cat. My vet sold me the first can of Knockout, and I bought the 2nd one at Chewy. I followed the directions and sprayed often, and vacuum, vacuum, vacuum. It worked! I also bought a Flea Comb from Chewy and used it on his fur to get the critters off. Finally we are pretty much flea free!